PE piping, pipe fitting installation method

· By using the electric resistance heat generated from the heat pipe inside the joint pipe, we can program the standard value for temperature and time, and if the specification is out of order, the wrong point of fusion is recorded by the outputted data. The ease of construction as it can be constructed in a simple manner even in a narrow space.

· Constructability is excellent because it is light in weight compared to other piping.

· Due to the characteristics of raw material, polyethylene (PE), it has excellent corrosion resistance, chemical resistance and cold resistance,

· Automatic welding machine is small and light, so it is convenient to use even in narrow or small space or difficult construction area.

· Process is simpler than that of butt fusion welding, so welding is easy.

· Electric fusion is a resistance heat generated by the electric resistance of the heat wire when the electricity is supplied because the heat line is installed inside the electric fusion welded tube. The electric fusion causes the outer surface of the pipe and the outer surface of the pipe to be melted and joined. The gap between the joint pipe and the PIPE is filled and welded to ensure perfect airtightness and watertightness. (For water / gas) same condition.

Before using electric fusing machine, make sure that it is in good condition firstly.
* When using generator, maximum capacity should be 5Kwatt or more and it should be used after idling for more than 10 minutes.
* The lead wire diameter should be 5Ø or more.
* The supplied power must be within the rated power (110V ± 5V, 220V ± 10V, 60Hz) required for the fusion welding machine.
* Electric fusing machines should not be used with electric appliances that use a lot of current.

Check whether the electric welder to be used is a normal safety device and safety-certified equipment within one year or not.

Check that the pipe used is the standard product defined by KSA or equivalent.

Cut each pipe to be connected at right angles and remove surface impurities.

Insert the pipe to the stopper inside the E / F, and mark the length of the insert on the outside of the pipe.

The welding surface of the pipe shall be chamfered (scraping) at least 0.2mm.

Pipes and E / F used before fusing are cleaned with methyl alcohol (80% or more) to remove impurities.

Slide the pipe into the E / F joint pipe to the point of the pipe indicating the insertion length.

Each pipe to be joined to the E / F joint pipe shall be inserted and aligned in a straight line.

Check the alignment between the pipe and the joint pipe, and perform the electric fusion work according to the “welding and cooling time table”.

Make sure that the fusion time indicated on the sticker matches the fusion time indicated on the welder.

After fusing, check the protruding condition of the projecting pin and follow the specified “cooling time”.

Check the leakage of the welded area and finish the work.

※ If you have a technical inquiry or require service when constructing the product, please follow our instructions after preserving the welding condition.

E / F FITTING Construction Order

1. Cleaning

Removal of impurities on the surface of PIPE

Methyl alcohol (80% or more)

2. Marking (Marking)

Insertion mark

Oil based marker

3. Chamfering

Surface scraping of PIPE

Dedicated scraper

4. Cleaning

Removal of impurities on the surface of PIPE

Methyl alcohol (80% or more)

5. Insert (fixed)

Fusing fixture and terminal connection

Clamp

6. Fusion

Fuser start button operation

Welder

7. Cooling

Standby until cooling time by specification

–

8. Release

Remove output line after cooling

–

Method of Joining PE Pipes and Fittings

Heat Fusion Joining

The joining method can be broadly divided into “heat fusion” and “electric fusion.” As it is possible to bond the base material, which is an advantage of polyethylene, these methods are easier to perform and offer a higher performance than the conventional method. On the other hand, the specified processes must strictly be observed because the completeness of fusion is determined by the three factors of fusion (i.e., temperature, pressure, and time).

Types

Butt Fusion :
A flat plate (heater plate) is inserted between the cross section of a pipe/fitting to fuse the cross section. The inserted heater plate is removed, and then the fused parts are pressed against each other and joined together. During these processes, the temperature, pressure, and time must be strictly observed.

Socket Fusion :
The fused parts (i.e., the inner surface of the socket-type fitting and the outer surface of the pipe) are inserted into a rugged heater plate (fixed with a heater face) and fused together. The heater plate is removed, and then insertion is carried out to join them together. This method is suitable for pipes No. 75 and below.

Screw-Type Joining :
A pipe is inserted into a fitting, and the cap and body are tightened using a chain wrench. This method is normally applied to pressurized water piping because it is easy to perform. It is suitable for the joining of pipes No. 100 and below.